ALEXANDRIA, Va., June 16 -- United States Patent no. D1,130,911, issued on June 16, was assigned to Radio Systems Corp. (Knoxville, Tenn.).

"Pet collar device" was invented by Darrell Douglas (Knoxville, Tenn.), Charles Ivins (Knoxville, Tenn.) and Richard Seltzer (Knoxville, Tenn.).

The patent was filed on June 20, 2023, under Application No. D/895,300.

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